Invoicing and receivables
Create and manage sales invoices, due dates and payment status while keeping the customer context attached.
Estonia-first · EU expansion with local validation
Run your company in Estonia from one connected workspace
Synx brings invoicing, accounting workflows, payroll preparation, CRM, documents and automation into one operating view—so your team can work from shared business context instead of disconnected tools.
- Designed around Estonian business workflows
- Critical AI actions stay under human control
- Modular setup for small and growing teams
Connected operating view
Today in your business
Sales and contacts
One shared context
Invoices and cash flow
Ready to review
Documents and expenses
Organised
Next action
Review pending items before approval
Illustrative Synx workspace view
Core capabilities
The operational tools a growing business needs, in one system
Use the modules that fit your current workflow and add more as your operating needs become more complex.
Accounting workflows
Keep expenses, accounting records and reporting workflows connected to the underlying business documents.
Payroll preparation
Organise payroll inputs and related processes in a structured flow that can be reviewed before processing.
CRM and sales
Track contacts, opportunities, quotations and follow-up activity without losing the financial context.
Contracts and documents
Keep agreements and business files connected to the customers, work and transactions they belong to.
Automation and AI assistance
Reduce repetitive handling with rules and AI-assisted sorting, explanations and suggested next steps.
From records to action
Connect the work from first customer contact to financial follow-up
Synx is designed around complete operating flows, not isolated data entry screens. Your exact flow depends on the modules and integrations you configure.
- 01
Capture the context
Keep customers, quotations, invoices, expenses, tasks and documents linked to the same business records.
- 02
Coordinate the workflow
Move work from quotation to invoice, from document to review and from an overdue item to follow-up.
- 03
Review and decide
Use status views and AI-assisted suggestions to identify the next action, then let an authorised person confirm it.
AI can help organise, explain and suggest. It does not replace authorised approval, an accountant or professional legal and tax advice.
Fit before features
A practical fit for Estonia-based SMEs that want fewer disconnected tools
Synx is strongest when a small or growing team wants shared operating context across sales, finance and administration.
Synx is a strong fit for
- Companies registered or operating in Estonia
- Founder-led, operations and finance teams that need one shared workspace
- Service, project-based and trading businesses with repeatable administrative flows
- Teams collaborating with an accountant and wanting cleaner source data
Confirm the fit first if
- You need a deeply customised enterprise ERP or specialist manufacturing planning
- You need payroll, a national e-invoice network or bank feeds outside Estonia inside the system today (not connected yet)
- Your migration depends on a specific bank, public-service or industry integration
- You want AI to approve legally or financially binding actions without human review
Eight countries, one workspace
Domestic rules for Estonia, Finland, Sweden, Norway, Denmark, Latvia, Lithuania and Ukraine — built in, not promised
Pick the seller country in settings and the rules follow: VAT rates with effective dates, the VAT return in the national box layout, identifier check digits, payment references, a national chart of accounts and the statutory invoice notes.
VAT and returns
Rates per country with effective dates (FI 25.5 %, SE 25 / 12 / 6, NO 25 / 15 / 12, DK 25, LV 21 / 12 / 5, LT 21 / 9 / 5, UA 20 / 14 / 7). A VAT-return worksheet in the national layout (OmaVero 301–313, momsdeklaration 05–49, mva-melding, momsangivelse, PVN, FR0600, декларація з ПДВ) computed from the same figures as your invoices; Estonia additionally exports the official KMD file.
Identifiers, invoices and ledgers
Registry-code and VAT-number check digits, personal codes, viitenumero / OCR / KID / FIK / RF payment references, statutory invoice notes (F-skatt, Foretaksregisteret, Lithuanian series, Ukrainian VAT-payer status), reverse-charge wording in the local language, and a national chart of accounts (BAS, NS 4102, План рахунків № 291 …) seeded on sign-up.
Sign-in and registries
Smart-ID sign-in for Estonia, Latvia and Lithuania, Mobile-ID for Estonia and Lithuania. Company lookups from the Estonian, Finnish (PRH) and Norwegian (Brønnøysund) registries. Peppol participant IDs suggested per country from the official OpenPeppol scheme list.
Not connected yet outside Estonia: payroll and payroll reporting, national e-invoice networks (Finvoice, Svefaktura, EHF, OIOUBL, ЄРПН), bank feeds and BankID/MitID/Suomi.fi sign-in. Confirm those with support before rollout; a local accountant should confirm the Latvian, Lithuanian and Ukrainian VAT box mapping before the first filing.
Frequently asked questions
What to know before choosing Synx
Clear answers about product fit, scope and rollout.
Contact supportWhat is Synx?
Synx is a business management platform that connects invoicing, accounting workflows, payroll preparation, CRM, contracts, documents, automation and AI assistance in one workspace.
Who is Synx best suited for?
Synx is primarily designed for small and growing companies operating in Estonia, especially teams that want sales, finance and administration to work from the same business records.
Can a company outside Estonia use Synx?
Yes. Besides Estonia, Synx ships the domestic rules of Finland, Sweden, Norway, Denmark, Latvia, Lithuania and Ukraine: VAT rates with effective dates, the VAT-return worksheet in the national box layout, registry-code and VAT-number check digits, national payment references, a national chart of accounts template and the statutory invoice notes. Payroll, national e-invoice networks and bank feeds outside Estonia are not connected yet — verify those with support before rollout.
Does Synx replace an accountant?
Not automatically. Synx can structure source data and accounting workflows, but professional review and statutory responsibility remain with the company and its authorised specialists.
How does Synx use AI?
AI can assist with organising information, explaining business data and suggesting next actions. Critical, legally binding or financial actions should be reviewed and confirmed by an authorised person.
What should we check before migrating?
Confirm the modules you need, user roles, required integrations, source-data quality, migration scope and country-specific obligations. Support can help you assess the fit before you commit to a rollout.
Start with a fit check
See whether Synx matches the way your company actually works
Create an account to explore the workspace, or contact support first if your rollout depends on migration, integrations or country-specific requirements.